Selecting All Messages in a Folder

  Choose Select All from the main window's Edit menu to select
  all messages in all open folders if you are using the Outline
  style main window.

  If you are using the Paned style main window, Select All
  selects all messages in the open folder.

  For more information about selecting objects, double click on
  the additional topic listed below.

  Additional topics:

  *   Selecting Drawers, Folders and Messages